Carving and engraving machine.



No. 666,985. Patented Ian. 29, l90l.

A. STIBIA.

GABVING AND ENGRAVI NG MACHINE.

(Application filed mi. 8,1900.)

2 Sheets-Sheet I.

(No Model.)

m/ VENTg/i W/ TNE SSE S A TTOHNE rs NITED, STATES PATENT: OFFIC ATTILIO, S5TIRIA,'O.F '5 NEW Yemen. Y.-

oARv| N a At: D Ens RAVIYNIG' MAQHLN E.

SPEGTFIQATION forming part of Letters intent no. 666,935,, dated memes, 1901'.

Application filed March 8' 19%" Serial No. 7,850. memorial.)

T0 al /'2 whom it may concern: ll

Be it'known that I, ATTILIQSTIRIA, a sub-.

ject of the King of Italy, and a resident of the city of New York, boroughofi Manhattan, in the county and Stateof New York, haveinvented a new and Improved Carving and Engraving Machine, of which the following is a full, clear, and exact description.

The object of the invention is to provide a" new and improved reproduc'ingmachine designed for carving Wood or the like and arranged to 'reproducea piece of work according to a given pattern, but of different proportion, the. machine being very simple and durable in construction, very efiective' in operation, and easily manipulated. and set. by the operator, according to-the work in hand.

The invention consists of novel featiires and parts and combinations of the same, as, will be fully-described hereinafterand then pointed out in the claims.

-A practical embodiment/of the invention.

is represented in the accompanying drawings,

.forming a p'art of this specification, in which similar characters of referenceindi'cate correspondingperts' in QILtIhQ'ViGWS- vFig. 6 is a sectional 'plenfview of the sameon. the line .6 6 in Fig.4, 35.

p Figurellis a front eleyfetion'of the improv ment. Fig. 2 is a side elevation'of the same.

Fig. 3 isa. plan view of "the same." Fig. {is an enlarged front elevation of 'a modified form of the tracer-slide and adjacent parts. Fig, 5 is a sectional front view of the same, and

The improved reproducing-machine isipro- 'vided witha-board A, preferably set in a verticalposit ionand fastenedto a fio'or, wall, or other'support, and on the-face .of the board A, near the lower end thereof, is securedla pattern 13 of the work to be reproduced on a block 0 of wood, stone, orpther material, see

" a vertical slot A, formed'in the board Agra graduation A being on said board '-A at one" cured by a clamping-screw C'tothe face of the board A above the pattern 13., 'Thelatter' is secured in position by a'clamping-sc'rewBf, and said clamping-screws C and' B' extend in side ot' the slot,

On the pattern B works a tracer D, and a carving-tool E operates on-the block 0, the

. saidtracer D'being secured on a slid e' F,.e' d"- ,justably held on a Zro'd (3%,011 which is also adjnstably held a second slide H, in which is mounted to turn the carving;tool E. The

carving-tool E is-rotatedeither by a suitable motor directly carried on'the slide H, or the;

tool. is provided with a pulleyE', connected by a belt E with suitable machinery for ,imv arting a rotary motion to said tool; but other suitable devices may, however, be employed for giving the desired rotation to the tool EL The rod Gracts as a guide 'forthefslides and forms also one side. of a-trihngui'am frame which is hungat its upper end on a universal joint I, soas to permit of moving the rodand; .frame in any desired direction. Thisallows the tracer D to followthe pattern B etits de pressions and elevations, so as to reproduce corresponding depressionsand elevations on, the block (3' by means-of thetpol E. The universal jointI is constructed of aT-sha-ped' member having 1 a forwardly-projecting, rodrear' end .ofthe rod or shank I rat-reformed right angular conical pins I I hung on ceno'r shank'I", Fig,, 3, on which the triangular] frame is hung to-swin sidewise, while on the o tors in a yoke Ii, having eyesfI, mounted to adjustably held on the rod I, and for this urpose a set-screw L is p id screwing in. a P JQ L, carried by th rod 1' the screw engaging the top of the eye of therod G, sis-indicated in Figs. 2 and 3.

The bearings-of the yoke I are"connected with each-otherby'an arm I Fig. 3 ,engaged by a screw-rod K, screwing in a nut K, SB?

cured to the back of-the boardAjsaid serewnod extending loosely through an opening in said board. 'By turning'the screw-rod; K the,

universal joint I-can be readily moved bodily forward orbackward'to bring the tracer D andthe tool Ein proper relation, respectively, to the'patterln B and the block C; The slide F is' moved by hand toca-nse the tracer'D to 'follow the configuration onv the 7 face of thepattern l3,'and in order to impart at corresponding movement to the slideHthe ing-screw Q extending in the slot 0.

following device is provided. 0n the rod G are secured angular arms G G for forming, with the rod G, the triangular frame, as is plainly indicated in Fig. 1, and at the junction of the arms G G is held a pivot N for a graduated bar 0, having a slot 0, engaging a pin P, carried by the slide F. The slide H, carrying the tool E, is connected with the bar 0 at a point between its pivot and the slide F by an extensible-link Q, having members Q Q Q, of which the member Q is pivotally connected with the slide H and slides in the 'member Q and the other member Q is pivthe graduation A -th'at is, the distance from the center of the universal jointIto the bottom of the pattern B is divided into as many parts on the graduation A as are contained in the distance between the center N and the pin P on the slide F and marked on the graduation 0 Thus when the work 0, for instance, is set with its center on the mark 3 of the graduation A then the block Q is moved to the corresponding mark 3 on the graduation O and then the block Q is fastened in place and the members Q and Q are secured in position by the set-screws Q in the member Q When the tracer D is moved up or down on the pattern 13, it is evident that a corresponding movementis given to the slide H and the tool E-by the action of the graduated bar 0 and the linkQ, and the inward and outward movement given to the tracer D in following the depressions and rises on the pattern B causes a like inward and outward movement of the tool E, owing to the swinging of the rod Grfrorn its universal joint, and consequently an exact reproduction, but of a reduced size, is made on the block 0 of the configuration on the face of the pattern B.

From the foregoing it is evident that the operator can readily move the tracerD over the pattern, as the universal joint of the frame carrying the tracer and the tool E allows such movement, and as the slide H moves in accordance with the movement given by the operator to the slide F it is evident that an exact reproduction of the pattern is made on the face of the block 0.

In order to make undercuts and the like, it is necessary to allow of setting the tracer D at diilercnt angles relatively to the pattern B and to set the tool E correspondingly relatively to the work-block-C. For this pur' pose I provide the arrangement shown in Figs. 4, 5, and G, which illustrates the tracer D and slide F, it being understood that the tool Eis similarly mounted in the slide H.

The tracer D is held in a head D, having a reduced portion D mounted to turn in a socket formed on the sleeve F, mounted to turn and adapted to be clamped on a slide F fitted to slide on the rod G of the frame, and in said reduced portion is arranged an annular groove D engaged by a screw R, to hold the head D from accidental displacement on the sleeve and to allowof clamping the head in a fixed position relatively to the sleeve F after adjustment is made-that is, after the head D, and with it the tracer D, is turned to the desired angle. As the sleeve F can also be turned on the slide F the tracer can be moved to any desired position relatively to the pattern, and micrometer-gradnations S S are formed on the sleeve F to permit of correctly setting the'tracer to the desired position, as will be readily understood by reference to Fig. 4. The head D is provided with a suitable handle D for conveniently turning the head when setting the tracer and for conveniently slidiiigth'e slide F on the rod G, as before explained.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. A machine for reproducing carvings and delineations, comprising a swinging frame hung at one end on a universal joint and hat ing a radially-arranged guide, two slides arranged to be adjusted in line upon said guide and carrying respectively the tracer and re producer-tool, a graduated arm pivoted to said frame on one side of the line of movement of the slides on said guide, and having an adjustable connection with the tracerslide, and an extensible link adjustably connected at one end to said graduated arm at a pointbetween the pivot of said arm and its ed at the other end to the reproducer-siide substantially as described.

2. A machine for reproducing carvings and delineations, comprising a triangular frame hung at one apex on a universal joint and having upon one of its sides two rectilinearlymoving slides carrying respectively the tracer and reproducer-tool, a graduated arm pivoted to another apex of the triangular frame and adjust-ably connected to the tracer-slide, and an extensible link adjust-ably connected at one end to the graduated arm at a point between its pivot and the tracer-slide, and connected at its other end to the reproducer-slide substantially as and for the purpose described.

3. In a machine for reproducing carvings connection with the tracer-slide and connectand delineations, the combination with the swinging frame carrying the adjustable tracer and reproducing-tool; ofa universaljoint sup porting said frame consisting of a T-shaped member having conical pins forming one pivotal axis and having for the other axis a shank portion forming the support for the swinging frame, means for adjusting said swinging frame along said shank portiomand means for supporting the conical pivots substantially as described.

4. 'In a machine for reproducing carvings and delineations, the combination with the swinging frame carrying the adj nstable tracer and reproducing-tool; ofa universal joint sup porting saidframeconsisting of a T-shaped member having conical pins forming one pi v ated' slot,' a support for the pattern and a support for the Work'and means for mounting and adjusting them in said. slot, a swing- 1 -,ing frame hung at one end upon a universal joint and having a radial guide with slides mounted on the same carrying the tracer and reproducer-tool, a graduated arm pivoted to one side of the r' dial guide and adjustably connected to the tracer-slide, and an extensicarvings I ble link adj nsta bly connected at one end to the graduated arm at a point between its pivot and the tracer-slide and connected at its other end to the reproducer-slide substalh:

tially as described. I

6; In a machine for reproducing carvings and delineations, the combination with the guide-rod G; of a slide mounted thereon, a sleeve clamped upon said slide and havinga rotary adjustment thereon with circular graduations at the joint between the sleeve and slide, and a tool-head carrying a tool, said head having a reduced portion entering the sleeveat its sideand retained therein for a swiveling connection and having circular graduations between the sleeve and the tool-v head, and means for fixingthis swiveling adjus'tment substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing-witnesses.

ATTILIO STIRIA.

Witnesses:

' ENRICO M. FRANCHI,

GIOVANNI OVITINO. 

